bench.php

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<?php
 
use Sabre\Event\EventEmitter;
 
include __DIR__ . '/../../vendor/autoload.php';
 
abstract class BenchMark {
 
    protected $startTime;
    protected $iterations = 10000;
    protected $totalTime;
 
    function setUp() {
 
    }
 
    abstract function test();
 
    function go() {
 
        $this->setUp();
        $this->startTime = microtime(true);
        $this->test();
        $this->totalTime = microtime(true) - $this->startTime;
        return $this->totalTime;
 
    }
 
}
 
class OneCallBack extends BenchMark {
 
    protected $emitter;
    protected $iterations = 100000;
 
    function setUp() {
 
        $this->emitter = new EventEmitter();
        $this->emitter->on('foo', function() {
            // NOOP
        });
 
    }
 
    function test() {
 
        for ($i = 0;$i < $this->iterations;$i++) {
            $this->emitter->emit('foo', []);
        }
 
    }
 
}
 
class ManyCallBacks extends BenchMark {
 
    protected $emitter;
 
    function setUp() {
 
        $this->emitter = new EventEmitter();
        for ($i = 0;$i < 100;$i++) {
            $this->emitter->on('foo', function() {
                // NOOP
            });
        }
 
    }
 
    function test() {
 
        for ($i = 0;$i < $this->iterations;$i++) {
            $this->emitter->emit('foo', []);
        }
 
    }
 
}
 
class ManyPrioritizedCallBacks extends BenchMark {
 
    protected $emitter;
 
    function setUp() {
 
        $this->emitter = new EventEmitter();
        for ($i = 0;$i < 100;$i++) {
            $this->emitter->on('foo', function() {
            }, 1000 - $i);
        }
 
    }
 
    function test() {
 
        for ($i = 0;$i < $this->iterations;$i++) {
            $this->emitter->emit('foo', []);
        }
 
    }
 
}
 
$tests = [
    'OneCallBack',
    'ManyCallBacks',
    'ManyPrioritizedCallBacks',
];
 
foreach ($tests as $test) {
 
    $testObj = new $test();
    $result = $testObj->go();
    echo $test . " " . $result . "\n";
 
}